The Liebert CWA provides a ready-to-use Thermal Wall for data centers with slab floors. The product has been engineered to maximize the cooling density per footprint. Furthermore, all the main components are factory installed, minimizing the installation costs on-site and providing an extremely efficient solution for infrastructures facing the challenges of modern IT applications.

Liebert CWA matches the requirements for cooling continuity coming from the most trusted and approved certification authorities for data center design and operation.

Liebert CWA embeds specific algorithms developed specially for non-raised floor applications, ensuring precise and constant control of airflow and temperature under all working conditions. A wider operating range allows users to remain a step ahead of the new challenges posed by data center requirements and climate change.

Configurations:

  • From 200 to 500 kW
  • From 4 to 8 fans
  • Unit structure according Standards IBC 2018

 

Main Options:

  • Touch Screen Display
  • Pressure Independent Control Valves
  • Dual power supply with Control Power Continuity
  • Flanges connections
  • Damper

 

Standardized Unit

  • The product layout has been engineered to maximize the cooling density for unit footprint, thus allowing to get more space for the IT equipment.
  • Multiple options, accessories and features are available as standard. Furthermore, all the main components are factory installed, minimizing the installation costs on site.
  • The product is a ready-to-use solution, which allows quick responsiveness in each project, thus accelerating data center design finalization and speed-to-market.

 

Energy Efficiency

  • The unit’s internal design combines market-leading technologies and optimizes the aerodynamic impact of all the internal components. Any details like filter surface, electrical panel design or piping positioning ensures a significant reduction of the internal air pressure drop compared with a standard AHU that immediately becomes a benefit in terms of reduced unit power consumption.

 

  • As a result of the latest evolution of the EC fans technology, unit energy efficiency improves. Utilizing powerful fans, unit cooling capacity increases by more than 5% with the same unit footprint.

 

  • The unit performance is certified by laboratory tests, thus delivering high rating accuracy. The performance tolerance respects strict parameters, granting an enhanced unit’s reliability.

 

Cooling Continuity

  • The cooling redundancy execution allows splitting the unit in two independent modules inside the same frame. In case the first module fails, the second doesn’t need to stop and can keep cooling the IT equipment without any interruption. The two modules are directly connected to the same control brain, thus avoiding any interference with the cooling request from the IT equipment.

 

  • The maximum return air working temperature is 45°C, thus permitting the infrastructures facing the challenges of modern IT applications to develop an extremely efficient environment. In specific cases, the unit operating temperature range can be further extended up.

 

  • The cooling override function is the best answer to increase the unit reliability, in case of control failure and during the re-booting time, limiting cooling interruptions to the IT equipment.

 

Vertiv™ Liebert® iCOM™ Smart Control

  • Vertiv™ Liebert® iCOM™ embeds specific algorithms developed specially for non-raised floor applications, ensuring precise and constant control of airflow and temperature under all working conditions.

 

  • Ready for Teamwork of up to 32 units with optimization based on installation type, it also allows for advanced control functionality (sharing sensor’s data, standby rotation, lead-lag, cascade operation and rotating master function).

 

  • Unit power consumptions and cooling gross capacity can be calculated relying on specific algorithms and the direct communication between the control, sensors, valves, and the EC fans. This allows the monitoring the unit energy efficiency through the BMS system.